Small Parts
Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.
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HK UMP, USC Slide for Lower - .40 S&W / .45 ACP / 9mm
H&K Heckler & Koch
$19.95HK USC & UMP Slide For Lower - German New HK German USC slide for conversion of UMP lower.HKP-00268$19.95 -
Out Of Stock
HK USC, SL8 Buttstock Allen Screw
H&K Heckler & Koch
$12.95Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.HKP-01649$12.95 -
Out Of Stock
HK 21 Ammunition Belt Box Adapter
Michaels Machines
$274.95Belt Box Adapter A new custom-made adapter - allows you to use HK German factory HK21E belt boxes on the HK21 older style or original style belt feds. It is a drop-in design that will enable easy and quick use of the superior HK21E belt boxes...HKP-01844$274.95 -
HKP HK MP5 (.40 S&W) Locking Roller -2
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -2 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...HKP-17563$11.95 -
On Sale
HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED
H&K Heckler & Koch
Now: $2.96Was: $5.95HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. Features: Precision-machined elbow spring and roller used in traditional roller-delayed...HKP-03330-USEDNow: $2.96Was: $5.95 -
B&T TP9, MP9 Extractor Spring
B&T Brugger & Thomet
$9.95B&T TP9, MP9 Extractor Spring Swiss-manufactured TP9 and MP9 extractor spring. Compatible With: B&T TP9, MP9HKP-17300$9.95 -
Out Of Stock
HK VP9SK, VP40SK Left Side Grip Panel - Small - Black
H&K Heckler & Koch
$18.95H&K VP9SK, VP40SK Left Side Grip Panel - Small - Black New HK German manufactured. Left side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SK HK VP40SKHKP-18297$18.95 -
HK VP9, VP40 Grip Panel Right Side - Large - FDE
H&K Heckler & Koch
$16.95H&K VP9, VP40 Grip Panel Right Side - Large - FDE New HK German manufactured. Right side, large size. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP9A1 F, VP9A1 K HK VP40HKP-18117$16.95 -
HK P30SK Backstrap - Small - Black
H&K Heckler & Koch
$29.95H&K P30SK Backstrap - Small - Black Compatible With: HK P30SKHKP-18081$29.95 -
$14.95 -
HK23E, HK13E Firing Pin
H&K Heckler & Koch
$109.95H&K 23E/13E (5.56/.223) Factory German Firing Pin New HK23E & HK13E factory German firing pin. These firing pins are no longer in production from HK. We have a limited number available and once they are gone, they are gone for good...HKP-00820$109.95 -
HK VP9, VP40 Right Side Grip Panel - Large - OD Green
H&K Heckler & Koch
$24.95H&K VP9, VP40 Right Side Grip Panel - Large - OD Green New HK German manufactured, right side size large. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP Pistol. Compatible With: HK VP9 (Excludes VP9A1 F & VP9A1 K...HKP-19176$24.95